1.

The value of the determinant Δ=∣∣∣∣cosαcosβcosαsinβ−sinα−sinβcosβ0sinαcosβsinαsinβcosα∣∣∣∣ is

Answer» The value of the determinant Δ=
cosαcosβcosαsinβsinαsinβcosβ0sinαcosβsinαsinβcosα
is


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